Kailyn Lowry is losing some serious weight - and we're wondering if she's shaping up because she's on the rebound, or if there's something more nefarious happening behind the scenes.

Lowry shared an Instagram pic to document her ever-shrinking figure, and all we have to say is that the rest of the Teen Moms are probably salivating over the attention that Lowry's been getting over her body as of late.